MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256e57b3763e7509f1c84c8bdad69cdb4f4fa2a99113a9ce3ac1e3bdd41ec4426b8
MD5278681c6e36141f495708f9e54252972
File Typeexe
Size89.5 KB
First Seen2025-08-11
File NameZQMEB.exe
Tagsexe, mail-miniorangeman-com, MassLogger

Malware Family: MassLogger

MassLogger, email keylogger'dır.

TypeInfostealer
Programming LanguageC#/.NET
Target PlatformWindows
C2 ProtocolSMTP/FTP
PurposeEmail keylogger
First Seen Year2020

Threat Indicators (IOC)

  • SHA256: e57b3763e7509f1c84c8bdad69cdb4f4fa2a99113a9ce3ac1e3bdd41ec4426b8
  • MD5: 278681c6e36141f495708f9e54252972

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Disconnect the system from the network immediately
  2. Yeni bir cihazdan banka hesabı, sosyal medya ve e-posta şifrelerini değiştirin
  3. Move crypto wallets to a new address and abandon the old ones
  4. Start a full scan with up-to-date antivirus
  5. Clear saved browser passwords and enable 2FA
  6. Sign out of all sessions on every affected service

YARA Rule Hints

rule MassLogger_SHA256 {
    meta:
        description = "MassLogger sample: e57b3763e7509f1c"
        threat_level = "medium"
        first_seen = "2025-08-11"
    condition:
        hash.sha256(0, filesize) == "e57b3763e7509f1c84c8bdad69cdb4f4fa2a99113a9ce3ac1e3bdd41ec4426b8"
}

MassLogger — Malware Profile

MassLogger credential stealer. PT2600000043.js Portekiz fatura lurü. CommonJS obfuscation. dispatch configuration data.

Malware Type
Infostealer
Programming Language
C#/.NET
C2 Protocol
SMTP/FTP
Target Systems
Windows

Capabilities & Behavior

Tarayıcı Kimlik Bilgileri
Çerez Hırsızlığı
Kripto Cüzdan Çalma
Sistem Bilgisi
Ekran Görüntüsü
FTP/SSH İstemci Şifreleri
E-posta İstemcisi Çalma
Veri Sızıntısı

IOC List (2 indicators)

IOC — MassLogger
# SHA256 e57b3763e7509f1c84c8bdad69cdb4f4fa2a99113a9ce3ac1e3bdd41ec4426b8 # MD5 278681c6e36141f495708f9e54252972
TypeValueNote
sha256 e57b3763e7509f1c84c8bdad69cdb4f4fa2a99113a9ce3ac1e3bdd41ec4426b8 Sample:MassLogger
md5 278681c6e36141f495708f9e54252972 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi